From: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
To: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: alex.lemberg@wdc.com, Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
Subject: [PATCH v1 5/9] ufs: sysfs: power descriptor
Date: Mon, 25 Dec 2017 10:34:34 +0200 [thread overview]
Message-ID: <1514190878-5571-6-git-send-email-stanislav.nijnikov@wdc.com> (raw)
In-Reply-To: <1514190878-5571-1-git-send-email-stanislav.nijnikov@wdc.com>
Signed-off-by: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
---
Documentation/ABI/testing/sysfs-driver-ufs | 10 +++
drivers/scsi/ufs/ufs-sysfs.c | 121 +++++++++++++++++++++++++++++
2 files changed, 131 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs
index 59399e3..7b86efd 100644
--- a/Documentation/ABI/testing/sysfs-driver-ufs
+++ b/Documentation/ABI/testing/sysfs-driver-ufs
@@ -440,4 +440,14 @@ Description: This file shows indication of the device life time
(method b). This is one of the UFS health descriptor
parameters. The full information about the descriptor
could be found at UFS specifications 2.1.
+ The file is read only.
+
+
+What: /sys/bus/platform/drivers/ufshcd/*/power_descriptor/active_icc_levels_vcc*
+Date: August 2017
+Contact: Stanislav Nijnikov <stanislav.nijnikov@wdc.com>
+Description: This file shows maximum VCC, VCCQ and VCCQ2 value for
+ active ICC levels from 0 to 15. This is one of the UFS
+ power descriptor parameters. The full information about
+ the descriptor could be found at UFS specifications 2.1.
The file is read only.
\ No newline at end of file
diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c
index 7b96677..b47cd2a 100644
--- a/drivers/scsi/ufs/ufs-sysfs.c
+++ b/drivers/scsi/ufs/ufs-sysfs.c
@@ -251,11 +251,132 @@ static const struct attribute_group ufs_sysfs_health_descriptor_group = {
.attrs = ufs_sysfs_health_descriptor,
};
+#define ufs_sysfs_power_desc_param_show(_name, _puname, _index) \
+static ssize_t _name##_index##_show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct ufs_hba *hba = dev_get_drvdata(dev); \
+ return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, buf, \
+ PWR_DESC_##_puname##_0 + _index * UFS_PARAM_WORD_SIZE, \
+ UFS_PARAM_WORD_SIZE); \
+}
+
+#define UFS_POWER_DESC_PARAM(_pname, _puname, _index) \
+ ufs_sysfs_power_desc_param_show(_pname, _puname, _index) \
+ static DEVICE_ATTR_RO(_pname##_index)
+
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 0);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 1);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 2);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 3);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 4);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 5);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 6);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 7);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 8);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 9);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 10);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 11);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 12);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 13);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 14);
+UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 15);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 0);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 1);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 2);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 3);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 4);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 5);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 6);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 7);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 8);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 9);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 10);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 11);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 12);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 13);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 14);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 15);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 0);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 1);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 2);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 3);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 4);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 5);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 6);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 7);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 8);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 9);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 10);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 11);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 12);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 13);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 14);
+UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 15);
+
+static struct attribute *ufs_sysfs_power_descriptor[] = {
+ &dev_attr_active_icc_levels_vcc0.attr,
+ &dev_attr_active_icc_levels_vcc1.attr,
+ &dev_attr_active_icc_levels_vcc2.attr,
+ &dev_attr_active_icc_levels_vcc3.attr,
+ &dev_attr_active_icc_levels_vcc4.attr,
+ &dev_attr_active_icc_levels_vcc5.attr,
+ &dev_attr_active_icc_levels_vcc6.attr,
+ &dev_attr_active_icc_levels_vcc7.attr,
+ &dev_attr_active_icc_levels_vcc8.attr,
+ &dev_attr_active_icc_levels_vcc9.attr,
+ &dev_attr_active_icc_levels_vcc10.attr,
+ &dev_attr_active_icc_levels_vcc11.attr,
+ &dev_attr_active_icc_levels_vcc12.attr,
+ &dev_attr_active_icc_levels_vcc13.attr,
+ &dev_attr_active_icc_levels_vcc14.attr,
+ &dev_attr_active_icc_levels_vcc15.attr,
+ &dev_attr_active_icc_levels_vccq0.attr,
+ &dev_attr_active_icc_levels_vccq1.attr,
+ &dev_attr_active_icc_levels_vccq2.attr,
+ &dev_attr_active_icc_levels_vccq3.attr,
+ &dev_attr_active_icc_levels_vccq4.attr,
+ &dev_attr_active_icc_levels_vccq5.attr,
+ &dev_attr_active_icc_levels_vccq6.attr,
+ &dev_attr_active_icc_levels_vccq7.attr,
+ &dev_attr_active_icc_levels_vccq8.attr,
+ &dev_attr_active_icc_levels_vccq9.attr,
+ &dev_attr_active_icc_levels_vccq10.attr,
+ &dev_attr_active_icc_levels_vccq11.attr,
+ &dev_attr_active_icc_levels_vccq12.attr,
+ &dev_attr_active_icc_levels_vccq13.attr,
+ &dev_attr_active_icc_levels_vccq14.attr,
+ &dev_attr_active_icc_levels_vccq15.attr,
+ &dev_attr_active_icc_levels_vccq20.attr,
+ &dev_attr_active_icc_levels_vccq21.attr,
+ &dev_attr_active_icc_levels_vccq22.attr,
+ &dev_attr_active_icc_levels_vccq23.attr,
+ &dev_attr_active_icc_levels_vccq24.attr,
+ &dev_attr_active_icc_levels_vccq25.attr,
+ &dev_attr_active_icc_levels_vccq26.attr,
+ &dev_attr_active_icc_levels_vccq27.attr,
+ &dev_attr_active_icc_levels_vccq28.attr,
+ &dev_attr_active_icc_levels_vccq29.attr,
+ &dev_attr_active_icc_levels_vccq210.attr,
+ &dev_attr_active_icc_levels_vccq211.attr,
+ &dev_attr_active_icc_levels_vccq212.attr,
+ &dev_attr_active_icc_levels_vccq213.attr,
+ &dev_attr_active_icc_levels_vccq214.attr,
+ &dev_attr_active_icc_levels_vccq215.attr,
+ NULL,
+};
+
+static const struct attribute_group ufs_sysfs_power_descriptor_group = {
+ .name = "power_descriptor",
+ .attrs = ufs_sysfs_power_descriptor,
+};
+
static const struct attribute_group *ufs_sysfs_groups[] = {
&ufs_sysfs_device_descriptor_group,
&ufs_sysfs_interconnect_descriptor_group,
&ufs_sysfs_geometry_descriptor_group,
&ufs_sysfs_health_descriptor_group,
+ &ufs_sysfs_power_descriptor_group,
NULL,
};
--
2.7.4
next prev parent reply other threads:[~2017-12-25 8:36 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-25 8:34 [PATCH v1 0/9] ufs: sysfs: read-only access to device descriptors, attributes and flags Stanislav Nijnikov
2017-12-25 8:34 ` [PATCH v1 1/9] ufs: sysfs: device descriptor Stanislav Nijnikov
2017-12-26 1:57 ` kbuild test robot
2017-12-26 2:47 ` kbuild test robot
2017-12-25 8:34 ` [PATCH v1 2/9] ufs: sysfs: interconnect descriptor Stanislav Nijnikov
2017-12-25 8:34 ` [PATCH v1 3/9] ufs: sysfs: geometry descriptor Stanislav Nijnikov
2017-12-25 8:34 ` [PATCH v1 4/9] ufs: sysfs: health descriptor Stanislav Nijnikov
2017-12-25 8:34 ` Stanislav Nijnikov [this message]
2017-12-25 8:34 ` [PATCH v1 6/9] ufs: sysfs: string descriptors Stanislav Nijnikov
2017-12-26 4:45 ` kbuild test robot
2017-12-25 8:34 ` [PATCH v1 7/9] ufs: sysfs: unit descriptor Stanislav Nijnikov
2017-12-26 8:22 ` kbuild test robot
2017-12-25 8:34 ` [PATCH v1 8/9] ufs: sysfs: flags Stanislav Nijnikov
2017-12-26 12:29 ` kbuild test robot
2017-12-25 8:34 ` [PATCH v1 9/9] ufs: sysfs: attributes Stanislav Nijnikov
2017-12-26 16:58 ` kbuild test robot
2017-12-27 13:49 [PATCH v1 0/9] ufs: sysfs: read-only access to device descriptors, attributes and flags Stanislav Nijnikov
2017-12-27 13:49 ` [PATCH v1 5/9] ufs: sysfs: power descriptor Stanislav Nijnikov
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